1. Sheep Heart

3. Anterior longitudinal sulcus

5. Left Auricle
Anterior longitudinal sulcus
You can find the anterior side of the heart by finding the auricle that you can see completely; it is the left auricle. The anterior longitudinal sulcus is on that side and the coronary sinus is on the posterior side.

6. What LAYER of tissue is this?
Apex

7. What LAYER of tissue is this?
Endocardium (inside all chambers where blood touches)
Myocardium (meaty areas of brown muscle)
Visceral pericardium (outer shiny surface of heart)
Apex

8. What CHAMBER?
Apex

9. Right atrium
Left atrium
Right ventricle
Left ventricle
Apex

10. Apex

11. Atrial septum
Right atrium
Left atrium
Tricuspid valve
Mitral (bicuspid) valve
Left ventricle
Right ventricle
Apex
Interventricular septum
Apex

13. Aortic semilunar valve
Mitral (bicuspid) valve
Cordae tendonae
Papillary muscles
Trabeculae carnae

15. Aortic semilunar valve
Mitral (bicuspid) valve
Cordae tendonae
Papillary muscle
Trabeculae carnae

17. Mitral (bicuspid) valve

19. Mitral (bicuspid) valve
Papillary muscle

21. Tricuspid valve

22. Apex

23. Atrial septum
Right atrium
Left atrium
Tricuspid valve
Mitral (bicuspid) valve
Left ventricle
Right ventricle
Apex
Interventricular septum
Apex

25. Pulmonary trunk
Aorta
Superior vena cava

27. Aortic semilunar valve
Aorta
Pulmonary trunk, which branches into pulmonary arteries
Pulmonary veins enter Left atrium
Aortic semilunar valve

29. Aorta

31. Superior vena cava
Inferior vena cava
Pulmonary vein

32. (leaving right ventricle)
___________
(leaving right ventricle)

33. (leaving right ventricle)
Pulmonary artery
(leaving right ventricle)

34. (leaving right ventricle)
___________
(leaving right ventricle)
_______
(back of heart)

35. Pulmonary artery as seen from back of heart
(leaving right ventricle)
Coronary sinus (back of heart)

37. Moderator band

38. _______________ (right ventricle only)

39. Moderator band

41. Pulmonary semilunar valve
Mitral (bicuspid) valve
Aortic semilunar valve (look deep under here)
Tricuspid valve
Cordae tendonae
Papillary muscles
Trabeculae carnae

43. Pulmonary
trunk
Pulmonary
veins
R. Coronary artery
L. Coronary artery
Anterior interventricular artery
Circumflex artery

45. Left common carotid artery
R. common carotid artery
R. subclavian artery
R. Brachiocephalic artery
Left subclavian artery
Aorta
Superior vena cava
Pulmonary trunk
L. Pulmonary
artery